<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
STATEMENT OF INCOME, STATEMENT OF CASH FLOWS, BALANCE SHEET, AND STATEMENT OF
COMMON STOCKHOLDERS' EQUITY, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<CIK> 0000811156
<NAME> CMS ENERGY CORPORATION
<MULTIPLIER> 1,000,000
       
                                                                                            
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997             DEC-31-1997
<BOOK-VALUE>                                  PER-BOOK                PER-BOOK                PER-BOOK                PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        4,393                   4,368                   4,347                   4,356
<OTHER-PROPERTY-AND-INVEST>                      1,642                   2,287                   2,351                   2,534
<TOTAL-CURRENT-ASSETS>                             770                     815                   1,037                   1,156
<TOTAL-DEFERRED-CHARGES>                         1,335                   1,394                   1,486                   1,462
<OTHER-ASSETS>                                       0                       0                       0                       0
<TOTAL-ASSETS>                                   8,140                   8,864                   9,221                   9,508
<COMMON>                                             1                       1                       1                       1
<CAPITAL-SURPLUS-PAID-IN>                        2,062                   2,075                   2,103                   2,267
<RETAINED-EARNINGS>                              (454)                   (435)                   (406)                   (379)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                   1,603                   1,635                   1,649                   1,787
<PREFERRED-MANDATORY>                              100                     273                     393                     393
<PREFERRED>                                        356                     356                     238                     238
<LONG-TERM-DEBT-NET>                             1,666                   1,988                   1,562                   1,528
<SHORT-TERM-NOTES>                                  88                     246                     394                     382
<LONG-TERM-NOTES-PAYABLE>                          962                   1,089                   1,498                   1,744
<COMMERCIAL-PAPER-OBLIGATIONS>                       0                       0                       0                       0
<LONG-TERM-DEBT-CURRENT-PORT>                      628                     650                     878                     609
<PREFERRED-STOCK-CURRENT>                            0                       0                       0                       0
<CAPITAL-LEASE-OBLIGATIONS>                         99                      89                      82                      75
<LEASES-CURRENT>                                    40                      40                      33                      34
<OTHER-ITEMS-CAPITAL-AND-LIAB>                   2,592                   2,492                   2,445                   2,616
<TOT-CAPITALIZATION-AND-LIAB>                    8,140                   8,864                   9,221                   9,508
<GROSS-OPERATING-REVENUE>                        1,295                   2,317                   3,347                   4,781
<INCOME-TAX-EXPENSE>                                47                      72                      99                     108
<OTHER-OPERATING-EXPENSES>                       1,091                   1,955                   2,807                   4,065
<TOTAL-OPERATING-EXPENSES>                       1,138                   2,027                   2,906                   4,173
<OPERATING-INCOME-LOSS>                            157                     290                     441                     608
<OTHER-INCOME-NET>                                 (2)                     (3)                     (2)                    (12)
<INCOME-BEFORE-INTEREST-EXPEN>                     155                     287                     439                     596
<TOTAL-INTEREST-EXPENSE>                            68                     143                     223                     309
<NET-INCOME>                                        87                     144                     216                     287
<PREFERRED-STOCK-DIVIDENDS>                          9                      19                      31                      43
<EARNINGS-AVAILABLE-FOR-COMM>                       78                     125                     185                     244
<COMMON-STOCK-DIVIDENDS>                            28                      56                      87                     119
<TOTAL-INTEREST-ON-BONDS>                            0                       0                       0                       0
<CASH-FLOW-OPERATIONS>                             367                     358                     334                     624
<EPS-PRIMARY>                                      .73<F1>                1.21<F1>                1.85<F1>                2.39<F1>
<EPS-DILUTED>                                      .72                    1.20                    1.83                    2.37
<FN>
<F1>EPS for CMS Energy Common Stock              $ .73                   $1.21                   $1.85                   $2.39
    EPS for Class G Common Stock                 $1.18                   $1.34                   $1.13                   $1.84
</FN>